Passes behind the wicket (5)
I believe the answer is:
slips
'passes' is the definition.
The answer and definition can be both acts as well as being plural nouns.
Maybe they are linked in a way I don't understand?
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for slips that I've seen before include "They try to catch you" , "errors" .)